Ors of one-half to paul bake well



(No Model.) 3 SheetsSheet 1.

A. RAMEL & W. W. DEAN.

CLOCK SYNGHRONIZING DEVICE.

No 346,862. Patented Aug. 3, 188

WE /MAM [Wm 7m pm4m% d WWMM 1AM fl 9mm ,4

N PETERS. Phvtu-Lithognphor. Washingion, n. c

(No Model.) 3 Sheets-Sheet 2.

A. RAMEL & W. W. DEAN. CLOCK SYNOHRONIZING DEVICE.

No. 346,862. Patented Aug. 3, 1886.

Wjf/mlms [Wm wz a /$41M. fl/f/d fimme Md (No Model.) 3 Sheets-Sheet 3.

A. RAMBL & W. W. DEAN.

CLOCK SYNGHRONIZING DEVICE.

No. 346,862. Patented Aug. 3, 1886.

millllllll mallmlllll lllillllmlnl lllll H l IIIII lllll lllllllll N, PETERS, Phowm UNITED STATES PATENT Orricn.

ALFRED RAMEL AND XVILLIAM V. DEAN, OF ST. LOUIS, lillSSOlllllf, ASSIGN- ORS OF ONE-HALF TO PAUL BAKEiVELL, OF SAME PLACE.

CLOCK-SYNCHRONIZING DEVICE.

SPECIFICATION forming part of Letters Patent No. 346,862, dated August Application filed February 1D, 1986.

T0 aZZ whom it may concern.-

Be it known that we, ALFRED RAMEL and WILLIAM W. DEAN, both of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Olock- Synchronizers, of which the following is a full, clear, and exact description.

Our invention relates to improvements up on Letters Patent granted to us, bearing date November 24, 1885, No. 330,923, for clocksynchronizers,wherein is described apparatus arranged separately from but combined with the clock mechanism, whereby an electric current is caused to automatically regulate a clock every hour by drawing the minutehand exactly to the front of twelve on the dial. The apparatus set forth in said Letters Patent No. 330,923 consists, essentially, of two eogwheels of equal diameter, gearing into each other and rotated in opposite directions when required bya train of toothed wheels and pinions operated bya spring. On the axes of the cog-wheels are fixed two regulating-arms, which are adjacent to and in combination with the minute-hand of the clock when at or near the front of twelve. One of the cog-wheels is provided with studs or stops, with which engages a specially-constructcd pawl carried at the end of a pivoted arm or lever, on the other end of which is an armature in proximity to electro-magnets, the whole operating in such a manner that on an electric current being transmitted through the magnets the ar1nature is attracted toward the magnets, and its pivoted arm or lever thereby moved over on its pivot, so as to raise the pawl. from its engagement with the stops on the cog-whee], when the cogwheels, with the regulating'arms, being free, are rotated by their operatingspring to the extent of one revolution only in opposite directions, and in so doing the ends of the regulatingarms, in approaching each other, catch and draw the minute-hand of the clock between them to the point of twelve.

Our present invention consists in mounting the moving mechanism of the synchronizer within the ordinary frame-work of the clock, so as to economize space and cost of construction, and in the use of simpler and more ef fective means of insuring a positive action of Serial No.10-2,505. (Xoniodeh) the cog-wheels and regnlatingarms than with the devices described in our said patent.

On the accompanying drawings, Figure 1 is a front elevation, partly broken away, repre senting a clock fitted with our invention; Fig. 2, a side elevation thereof; Fig. 8, a detached front viewof the principal parts of ourinveution; and Fig. -;'l-, a plan of Fig. 8, with the clock-hands omitted, like letters of reference denoting like parts in all the figures.

a represent cog-whecls gearing into each other and corresponding with the cog-wheels A A, described and illustrated in our said previous patent. The cog-wheels a a are fixed, respectively, on axles L) Z), and rotated in opposite directions, when required, by the spur-wheel c, which is fixed on shaft (Z, where on is pinion c, geared into spur-wheel f, which is fixed on shaft driven by the force of spring h.

the variors wheels, shafts, and pi nions throughout the train of gearing, as described, are mounted within the ordinary frame-world of the clock, and are respectively rotated in the directions indicated by the arrows in Fig. 1.

On the ends of the axles Z) I) of the cop; wheels a (1 are fixed, respectively, the two regulating-armsjj, which are of equal length and correspond with the arms B 13 of our said patent. The arms jj rotate, in the case of the cog-wheels a a, in opposite directions that is to say, from each other in an upward and then downward direction and in planes parallel with that of the minute-hand 7; of the clock.

Projecting radially from thchub Z (or other part) of the spindle in of the minuteliand 7); is an arm, a, the direction of which when the minute-hand 7t is at the point of twelve on the dial willbe exactly midway between the centers of the cog-wheels a a, and will be between and in contact with the ends of the arms j when these are nearest to and in line with each other.

On the axle Z) of the cog-wheel a is an arm, 0, from one side of which, at its outer end, projects a bolt or stud, p, which,when the appa ratus is not in action, normally bears against the rabbcted hooked (or broadened) portion {1 The co -wheels a c and their axles Z) 0 with of one end of an arm or lever, 1',which ispivoted at 8 within the framework-i of the clock and terminates at its other end in an armature, t, which, with lever 9', is normally re-. tained against the upper end of the fixed upright bar a (or equivalent stop) at a suitable distance from the electro-magnets o, as shown in Figs. 1 and 3, by a light spring, w, (or its equivalent--a weight.) Above its rabbeted hooked portion q the arm or lever 7* extends over and terminates beyond the bolt or catch 1) (when the latter is in its normal position, as shown) in a hooked (or broadened) end, a:.

The operation of our improved synchronizer is as follows: The spring it being wound up and the lever 1' in its normal position, as shown, the cog-wheels a a will be prevented from rotating by the bolt or stud p of the arm 0 bearin g against the rabbeted hooked portion 1 of the lever 1",- but onacurrent of electricity being transmitted (once every hour) through the elcctro-magnets r, the armature t is attracted to the magnets 12, and, overcoming the tension of the spring 10, the lever 1 moves over on its pivot s, so as to lower the rabbeted hooked portion (1 of its end out of contact with and clear of the bolt or stud p,which with the arm 0 being then free the cog-wheels a a are rotated by the action of the spring h, but are prevented from performing more than one revolution by the bolt or studp,which, in returning to its normal position, if the armature t is still in contact with the magnets 12, comes in contact with and bears against the outer hooked end, a, of the levera'; or if the armature t and lev'er 1' have been released from the magnets 0 and returned by the spring w to their normal position, as shown, the belt or stud p is stopped by the rabbeted hooked portion g of the end of lever 1', as before. As the cogwheels a a revolve, the regulating-arms j j also rotate, and, approaching each other, catch radial arm n, (if this is within their circuits,)

having armature t, and with electro-magnets 1), spring 10, and upright bar or equivalent stop a, substantially as and for the purpose hereinbefore described and shown.

2. In a clock-synchronizing apparatus, the cog-wheels a a, mounted on axles b b, regulating-armsjj, arm 0 on axle b, and projecting bolt or stud p, all rotated substantially as described, in combination with arm n of' minute-hand k, and with the double-hooked end q x of arm or lever 1, having armature t, electro-magnets rv, spring 10, and upright bar or equivalent stop a, substantially as shown, and for the purpose described. i

3. In a clock-synchronizing apparatus, cog wheels to a, mounted on axles I) b, regulatingarms j j, arm 0 on axle b, and projecting bolt or stud 1), all rotating substantially as decribed, in combination with double-hooked end q a; of arm or lever 1', armature t, spring.

w, and upright bar or equivalent stop a, the.

whole being mounted within the clock framework, substantially as shown, and for the purpose described.

In testimony whereof we have aiiixed our signatures, in presence of two witnesses, this 15th day of February, 1886.

ALFRED RAMEL.

- WILLIAM W. DEAN.

Witnesses:

PAUL BAK-EWELL, Jos. W. CRooKEs. 

